Size: 9 by 12 Inch. CANSON artist series mix media pads contain a heavyweight, dual-surface paper: fine and medium textures. This paper is ideal for pencil, and colored pencil and suitable for use with pen, ink, charcoal, and pastel. Artist series mix media works well with wet and dry media and has excellent erasability. These pads contain 20 sheets of 138 pound/224 gram acid free paper in a 9 x 12 inch size.